sysdeps/ieee754/libm-alias-finite.h

   1 /* Finite math compatibility macros.
   2    Copyright (C) 2020-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _LIBM_ALIAS_FINITE_H
  20 #define _LIBM_ALIAS_FINITE_H
  21
  22 #include <first-versions.h>
  23 #include <shlib-compat.h>
  24
  25 /* The -ffinite-math symbols were added on GLIBC 2.15 and moved to compat
  26    symbol so newer architectures do not require to support it.  */
  27 #if SHLIB_COMPAT (libm, GLIBC_2_15, GLIBC_2_31)
  28 # define libm_alias_finite(from, to)                            \
  29   libm_alias_finite1(from, to)
  30 # define libm_alias_finite1(from, to)                           \
  31 compat_symbol (libm,                                            \
  32                from,                                            \
  33                to ## _finite,                                   \
  34                FIRST_VERSION_libm_ ## to ## _finite);
  35 #else
  36 # define libm_alias_finite(from, to)
  37 #endif
  38
  39 #endif